Increase in organic traffic - tripled in a month - doesn't feel right

We saw a leap in organic traffic month to month after a surprise leap (imagine going from 300 sessions to 3,000 in a day) that we thought we corrected for. Organic traffic went from an average of 11k sessions to 35k sessions in less than two months. While we certainly have done things to boost organic traffic, this seems like it's not quite right. Any thoughts on things that might cause a leap in organic traffic?

Hi Tom,First check by which keywords /cities/countries you are getting traffic. Check keyword ranking in google by which you are getting traffic. If you find that keywords are ranking at top/first page in Google then no need to worry it is good for you. If that is not the case then if possible send screenshot of you GA dashboard once.